WO2006028286A1 - コンデンサ素子製造用反応容器、コンデンサ素子の製造方法及びコンデンサ素子並びにコンデンサ - Google Patents
コンデンサ素子製造用反応容器、コンデンサ素子の製造方法及びコンデンサ素子並びにコンデンサ Download PDFInfo
- Publication number
- WO2006028286A1 WO2006028286A1 PCT/JP2005/017005 JP2005017005W WO2006028286A1 WO 2006028286 A1 WO2006028286 A1 WO 2006028286A1 JP 2005017005 W JP2005017005 W JP 2005017005W WO 2006028286 A1 WO2006028286 A1 WO 2006028286A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- capacitor element
- capacitor
- reaction vessel
- constant current
- cathode
- Prior art date
Links
- 239000003990 capacitor Substances 0.000 title claims abstract description 127
- 238000006243 chemical reaction Methods 0.000 title claims abstract description 95
- 238000000034 method Methods 0.000 title claims abstract description 38
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 36
- 239000004020 conductor Substances 0.000 claims abstract description 87
- 239000004065 semiconductor Substances 0.000 claims abstract description 73
- 238000009826 distribution Methods 0.000 claims abstract description 18
- 239000000758 substrate Substances 0.000 claims description 12
- 239000003792 electrolyte Substances 0.000 claims description 8
- 239000008151 electrolyte solution Substances 0.000 claims description 6
- 239000007769 metal material Substances 0.000 claims description 3
- 230000005611 electricity Effects 0.000 abstract description 2
- 239000007788 liquid Substances 0.000 abstract description 2
- 239000010410 layer Substances 0.000 description 100
- 229920005989 resin Polymers 0.000 description 26
- 239000011347 resin Substances 0.000 description 26
- 229910052751 metal Inorganic materials 0.000 description 24
- 239000002184 metal Substances 0.000 description 24
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 12
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 12
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 11
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 description 11
- 239000000843 powder Substances 0.000 description 11
- 239000000126 substance Substances 0.000 description 11
- 238000007747 plating Methods 0.000 description 10
- 229910052709 silver Inorganic materials 0.000 description 10
- 239000004332 silver Substances 0.000 description 10
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 9
- 239000010949 copper Substances 0.000 description 9
- 229910052802 copper Inorganic materials 0.000 description 9
- GUCVJGMIXFAOAE-UHFFFAOYSA-N niobium atom Chemical compound [Nb] GUCVJGMIXFAOAE-UHFFFAOYSA-N 0.000 description 9
- 239000000243 solution Substances 0.000 description 9
- 230000032683 aging Effects 0.000 description 8
- 239000002019 doping agent Substances 0.000 description 8
- 239000011888 foil Substances 0.000 description 8
- 229920000642 polymer Polymers 0.000 description 8
- 229910052782 aluminium Inorganic materials 0.000 description 7
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 7
- 230000015572 biosynthetic process Effects 0.000 description 7
- 230000000052 comparative effect Effects 0.000 description 7
- 229910044991 metal oxide Inorganic materials 0.000 description 7
- 150000004706 metal oxides Chemical class 0.000 description 7
- 239000011148 porous material Substances 0.000 description 7
- 239000007787 solid Substances 0.000 description 7
- GUVRBAGPIYLISA-UHFFFAOYSA-N tantalum atom Chemical compound [Ta] GUVRBAGPIYLISA-UHFFFAOYSA-N 0.000 description 7
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 6
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 6
- -1 Ta 2 0 5 Chemical class 0.000 description 6
- 150000001875 compounds Chemical class 0.000 description 6
- 239000003822 epoxy resin Substances 0.000 description 6
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 6
- 229910052737 gold Inorganic materials 0.000 description 6
- 239000010931 gold Substances 0.000 description 6
- 238000000465 moulding Methods 0.000 description 6
- 229910052759 nickel Inorganic materials 0.000 description 6
- 229920000647 polyepoxide Polymers 0.000 description 6
- 238000007789 sealing Methods 0.000 description 6
- 229910052757 nitrogen Inorganic materials 0.000 description 5
- BDHFUVZGWQCTTF-UHFFFAOYSA-N sulfonic acid Chemical compound OS(=O)=O BDHFUVZGWQCTTF-UHFFFAOYSA-N 0.000 description 5
- 239000002344 surface layer Substances 0.000 description 5
- 229910052715 tantalum Inorganic materials 0.000 description 5
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 4
- 125000000217 alkyl group Chemical group 0.000 description 4
- 229910045601 alloy Inorganic materials 0.000 description 4
- 239000000956 alloy Substances 0.000 description 4
- 239000007864 aqueous solution Substances 0.000 description 4
- 229910052799 carbon Inorganic materials 0.000 description 4
- 125000004432 carbon atom Chemical group C* 0.000 description 4
- 239000003985 ceramic capacitor Substances 0.000 description 4
- 229920001940 conductive polymer Polymers 0.000 description 4
- YADSGOSSYOOKMP-UHFFFAOYSA-N dioxolead Chemical compound O=[Pb]=O YADSGOSSYOOKMP-UHFFFAOYSA-N 0.000 description 4
- QXYJCZRRLLQGCR-UHFFFAOYSA-N dioxomolybdenum Chemical compound O=[Mo]=O QXYJCZRRLLQGCR-UHFFFAOYSA-N 0.000 description 4
- 238000001035 drying Methods 0.000 description 4
- 150000002739 metals Chemical class 0.000 description 4
- BFRGSJVXBIWTCF-UHFFFAOYSA-N niobium monoxide Chemical compound [Nb]=O BFRGSJVXBIWTCF-UHFFFAOYSA-N 0.000 description 4
- 238000006116 polymerization reaction Methods 0.000 description 4
- 150000003839 salts Chemical class 0.000 description 4
- 239000010935 stainless steel Substances 0.000 description 4
- 229910001220 stainless steel Inorganic materials 0.000 description 4
- DZKDPOPGYFUOGI-UHFFFAOYSA-N tungsten(iv) oxide Chemical compound O=[W]=O DZKDPOPGYFUOGI-UHFFFAOYSA-N 0.000 description 4
- 238000005406 washing Methods 0.000 description 4
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 description 3
- 239000004593 Epoxy Substances 0.000 description 3
- 229910052786 argon Inorganic materials 0.000 description 3
- 239000012298 atmosphere Substances 0.000 description 3
- 238000005520 cutting process Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000002474 experimental method Methods 0.000 description 3
- 239000011521 glass Substances 0.000 description 3
- 125000004435 hydrogen atom Chemical group [H]* 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 229910052758 niobium Inorganic materials 0.000 description 3
- 239000010955 niobium Substances 0.000 description 3
- 229920000128 polypyrrole Polymers 0.000 description 3
- 229920000123 polythiophene Polymers 0.000 description 3
- 238000007711 solidification Methods 0.000 description 3
- 230000008023 solidification Effects 0.000 description 3
- PCCVSPMFGIFTHU-UHFFFAOYSA-N tetracyanoquinodimethane Chemical compound N#CC(C#N)=C1C=CC(=C(C#N)C#N)C=C1 PCCVSPMFGIFTHU-UHFFFAOYSA-N 0.000 description 3
- 238000003466 welding Methods 0.000 description 3
- MMNWSHJJPDXKCH-UHFFFAOYSA-N 9,10-dioxoanthracene-2-sulfonic acid Chemical compound C1=CC=C2C(=O)C3=CC(S(=O)(=O)O)=CC=C3C(=O)C2=C1 MMNWSHJJPDXKCH-UHFFFAOYSA-N 0.000 description 2
- 229910000881 Cu alloy Inorganic materials 0.000 description 2
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 description 2
- PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Chemical compound C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 description 2
- 229920000180 alkyd Polymers 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
- 229920001577 copolymer Polymers 0.000 description 2
- 125000004122 cyclic group Chemical group 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 229910052734 helium Inorganic materials 0.000 description 2
- 239000001307 helium Substances 0.000 description 2
- SWQJXJOGLNCZEY-UHFFFAOYSA-N helium atom Chemical compound [He] SWQJXJOGLNCZEY-UHFFFAOYSA-N 0.000 description 2
- 150000003949 imides Chemical class 0.000 description 2
- NUJOXMJBOLGQSY-UHFFFAOYSA-N manganese dioxide Chemical compound O=[Mn]=O NUJOXMJBOLGQSY-UHFFFAOYSA-N 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 125000004433 nitrogen atom Chemical group N* 0.000 description 2
- 230000009972 noncorrosive effect Effects 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 239000005011 phenolic resin Substances 0.000 description 2
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 description 2
- 229920000767 polyaniline Polymers 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- 238000007639 printing Methods 0.000 description 2
- 238000005245 sintering Methods 0.000 description 2
- 229910000679 solder Inorganic materials 0.000 description 2
- 239000002904 solvent Substances 0.000 description 2
- 125000001424 substituent group Chemical group 0.000 description 2
- 125000000542 sulfonic acid group Chemical group 0.000 description 2
- XOLBLPGZBRYERU-UHFFFAOYSA-N tin dioxide Chemical compound O=[Sn]=O XOLBLPGZBRYERU-UHFFFAOYSA-N 0.000 description 2
- IAGVANYWTGRDOU-UHFFFAOYSA-N 1,4-dioxonaphthalene-2-sulfonic acid Chemical compound C1=CC=C2C(=O)C(S(=O)(=O)O)=CC(=O)C2=C1 IAGVANYWTGRDOU-UHFFFAOYSA-N 0.000 description 1
- KAESVJOAVNADME-UHFFFAOYSA-N 1H-pyrrole Natural products C=1C=CNC=1 KAESVJOAVNADME-UHFFFAOYSA-N 0.000 description 1
- YMMGRPLNZPTZBS-UHFFFAOYSA-N 2,3-dihydrothieno[2,3-b][1,4]dioxine Chemical compound O1CCOC2=C1C=CS2 YMMGRPLNZPTZBS-UHFFFAOYSA-N 0.000 description 1
- LBLYYCQCTBFVLH-UHFFFAOYSA-N 2-Methylbenzenesulfonic acid Chemical compound CC1=CC=CC=C1S(O)(=O)=O LBLYYCQCTBFVLH-UHFFFAOYSA-N 0.000 description 1
- QOIXLGYJPBDQSK-UHFFFAOYSA-N 3,6-dioxocyclohexa-1,4-diene-1-sulfonic acid Chemical compound OS(=O)(=O)C1=CC(=O)C=CC1=O QOIXLGYJPBDQSK-UHFFFAOYSA-N 0.000 description 1
- JAJIPIAHCFBEPI-UHFFFAOYSA-N 9,10-dioxoanthracene-1-sulfonic acid Chemical compound O=C1C2=CC=CC=C2C(=O)C2=C1C=CC=C2S(=O)(=O)O JAJIPIAHCFBEPI-UHFFFAOYSA-N 0.000 description 1
- 239000004925 Acrylic resin Substances 0.000 description 1
- 229920000178 Acrylic resin Polymers 0.000 description 1
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 description 1
- 239000005977 Ethylene Substances 0.000 description 1
- 229910000640 Fe alloy Inorganic materials 0.000 description 1
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 description 1
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- SIKJAQJRHWYJAI-UHFFFAOYSA-N Indole Chemical compound C1=CC=C2NC=CC2=C1 SIKJAQJRHWYJAI-UHFFFAOYSA-N 0.000 description 1
- GEIAQOFPUVMAGM-UHFFFAOYSA-N Oxozirconium Chemical compound [Zr]=O GEIAQOFPUVMAGM-UHFFFAOYSA-N 0.000 description 1
- 229920001609 Poly(3,4-ethylenedioxythiophene) Polymers 0.000 description 1
- 239000004734 Polyphenylene sulfide Substances 0.000 description 1
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 1
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 1
- 239000004840 adhesive resin Substances 0.000 description 1
- 229920006223 adhesive resin Polymers 0.000 description 1
- 239000003570 air Substances 0.000 description 1
- 229910052783 alkali metal Inorganic materials 0.000 description 1
- 229910052784 alkaline earth metal Inorganic materials 0.000 description 1
- 125000003545 alkoxy group Chemical group 0.000 description 1
- 229910000147 aluminium phosphate Inorganic materials 0.000 description 1
- 150000001408 amides Chemical class 0.000 description 1
- 150000003863 ammonium salts Chemical class 0.000 description 1
- ILFFFKFZHRGICY-UHFFFAOYSA-N anthracene-1-sulfonic acid Chemical compound C1=CC=C2C=C3C(S(=O)(=O)O)=CC=CC3=CC2=C1 ILFFFKFZHRGICY-UHFFFAOYSA-N 0.000 description 1
- 125000003118 aryl group Chemical group 0.000 description 1
- 239000002585 base Substances 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- SRSXLGNVWSONIS-UHFFFAOYSA-N benzenesulfonic acid Chemical compound OS(=O)(=O)C1=CC=CC=C1 SRSXLGNVWSONIS-UHFFFAOYSA-N 0.000 description 1
- 229940092714 benzenesulfonic acid Drugs 0.000 description 1
- QDHFHIQKOVNCNC-UHFFFAOYSA-N butane-1-sulfonic acid Chemical compound CCCCS(O)(=O)=O QDHFHIQKOVNCNC-UHFFFAOYSA-N 0.000 description 1
- 238000003763 carbonization Methods 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- ZHGASCUQXLPSDT-UHFFFAOYSA-N cyclohexanesulfonic acid Chemical compound OS(=O)(=O)C1CCCCC1 ZHGASCUQXLPSDT-UHFFFAOYSA-N 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
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- 150000002148 esters Chemical class 0.000 description 1
- 238000005530 etching Methods 0.000 description 1
- 230000005669 field effect Effects 0.000 description 1
- 239000011737 fluorine Substances 0.000 description 1
- 229910052731 fluorine Inorganic materials 0.000 description 1
- 230000002431 foraging effect Effects 0.000 description 1
- 238000010574 gas phase reaction Methods 0.000 description 1
- 230000020169 heat generation Effects 0.000 description 1
- FYAQQULBLMNGAH-UHFFFAOYSA-N hexane-1-sulfonic acid Chemical compound CCCCCCS(O)(=O)=O FYAQQULBLMNGAH-UHFFFAOYSA-N 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 239000005001 laminate film Substances 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 239000011812 mixed powder Substances 0.000 description 1
- PSZYNBSKGUBXEH-UHFFFAOYSA-N naphthalene-1-sulfonic acid Chemical compound C1=CC=C2C(S(=O)(=O)O)=CC=CC2=C1 PSZYNBSKGUBXEH-UHFFFAOYSA-N 0.000 description 1
- 239000012299 nitrogen atmosphere Substances 0.000 description 1
- 125000004430 oxygen atom Chemical group O* 0.000 description 1
- 125000000843 phenylene group Chemical group C1(=C(C=CC=C1)*)* 0.000 description 1
- 229910052697 platinum Inorganic materials 0.000 description 1
- 229920000414 polyfuran Polymers 0.000 description 1
- 229920000069 polyphenylene sulfide Polymers 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 125000000168 pyrrolyl group Chemical group 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 229930195734 saturated hydrocarbon Natural products 0.000 description 1
- 238000002791 soaking Methods 0.000 description 1
- 229910052708 sodium Inorganic materials 0.000 description 1
- 239000011734 sodium Substances 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 230000035882 stress Effects 0.000 description 1
- 125000000446 sulfanediyl group Chemical group *S* 0.000 description 1
- 238000005486 sulfidation Methods 0.000 description 1
- BDHFUVZGWQCTTF-UHFFFAOYSA-M sulfonate Chemical compound [O-]S(=O)=O BDHFUVZGWQCTTF-UHFFFAOYSA-M 0.000 description 1
- 150000003460 sulfonic acids Chemical class 0.000 description 1
- UGNWTBMOAKPKBL-UHFFFAOYSA-N tetrachloro-1,4-benzoquinone Chemical compound ClC1=C(Cl)C(=O)C(Cl)=C(Cl)C1=O UGNWTBMOAKPKBL-UHFFFAOYSA-N 0.000 description 1
- BFKJFAAPBSQJPD-UHFFFAOYSA-N tetrafluoroethene Chemical group FC(F)=C(F)F BFKJFAAPBSQJPD-UHFFFAOYSA-N 0.000 description 1
- 229920002803 thermoplastic polyurethane Polymers 0.000 description 1
- 229910052718 tin Inorganic materials 0.000 description 1
- 239000011135 tin Substances 0.000 description 1
- 239000010936 titanium Substances 0.000 description 1
- 229910052719 titanium Inorganic materials 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- 125000004417 unsaturated alkyl group Chemical group 0.000 description 1
- 238000007740 vapor deposition Methods 0.000 description 1
- 229920002554 vinyl polymer Polymers 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
- H01G13/00—Apparatus specially adapted for manufacturing capacitors; Processes specially adapted for manufacturing capacitors not provided for in groups H01G4/00 - H01G11/00
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
- H01G9/00—Electrolytic capacitors, rectifiers, detectors, switching devices, light-sensitive or temperature-sensitive devices; Processes of their manufacture
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
- H01G9/00—Electrolytic capacitors, rectifiers, detectors, switching devices, light-sensitive or temperature-sensitive devices; Processes of their manufacture
- H01G9/0029—Processes of manufacture
- H01G9/0032—Processes of manufacture formation of the dielectric layer
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
- H01G9/00—Electrolytic capacitors, rectifiers, detectors, switching devices, light-sensitive or temperature-sensitive devices; Processes of their manufacture
- H01G9/0029—Processes of manufacture
- H01G9/0036—Formation of the solid electrolyte layer
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
- H01G9/00—Electrolytic capacitors, rectifiers, detectors, switching devices, light-sensitive or temperature-sensitive devices; Processes of their manufacture
- H01G9/004—Details
- H01G9/022—Electrolytes; Absorbents
- H01G9/025—Solid electrolytes
- H01G9/028—Organic semiconducting electrolytes, e.g. TCNQ
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
- H01G9/00—Electrolytic capacitors, rectifiers, detectors, switching devices, light-sensitive or temperature-sensitive devices; Processes of their manufacture
- H01G9/004—Details
- H01G9/04—Electrodes or formation of dielectric layers thereon
- H01G9/042—Electrodes or formation of dielectric layers thereon characterised by the material
Definitions
- Reaction vessel for manufacturing capacitor element method for manufacturing capacitor element, capacitor element and capacitor
- the present invention relates to a method for manufacturing a capacitor element that achieves a stable capacity appearance rate
- Capacitors used in CPU (central processing unit) circuits used in personal computers, etc. have high capacity and low ESR (equivalent to suppress voltage fluctuation and reduce heat generation when passing through high ripple). Series resistance).
- a plurality of aluminum solid electrolytic capacitors and tantalum solid electrolytic capacitors are used as capacitors used in the CPU circuit.
- Such a solid electrolytic capacitor uses an aluminum foil having fine pores in the surface layer or a sintered body of tantalum powder having fine pores as one electrode (conductor), and the surface layer of the electrode. And the other electrode (usually a semiconductor layer) provided on the dielectric layer.
- Patent No. 1 8 6 8 7 2 2, Patent 1 9 8 5 0 5 6 and Patent 2 There is a method of forming by an energization method described in the specification of 0 5 4 5 0 6. In each case, a conductor with a dielectric layer on the surface is dipped in a semiconductor layer forming solution, and a voltage is applied between the conductor side as an anode and an external electrode (cathode) prepared in the semiconductor layer forming solution (current) This is a method of forming a semiconductor layer.
- 3-2 2 5 16 describes a method of forming a semiconductor layer by flowing a current obtained by superimposing a DC bias current on an alternating current through a conductor provided with a dielectric layer.
- a conductor is brought into contact with a chemical polymerization layer on a dielectric layer, and a semiconductor layer is formed on the chemical polymerization layer by electrolytic polymerization using the conductor as an anode.
- a method is described. These methods have a problem when a semiconductor layer is formed on a plurality of conductors at the same time.
- an object of the present invention is to manufacture a capacitor element that can obtain a capacitor with a narrow capacitance distribution and a stable capacitor layer formation when a semiconductor layer of a capacitor is formed on a plurality of conductors by an energization method. It is to provide means (reaction vessel and production method). As a result of intensive studies to solve the above problems, the present inventors have found that a capacitor group with a narrow capacitance distribution can be obtained by forming a semiconductor layer by supplying a constant current to a conductor. The invention has been completed.
- the present invention provides the following reaction container for manufacturing a capacitor element, a method for manufacturing a capacitor element, a capacitor element, and a capacitor.
- a reaction vessel in which a plurality of conductors having a dielectric layer formed on the surface are simultaneously immersed in an electrolytic solution in a reaction vessel and a semiconductor layer is formed by an energization method.
- a reaction container for manufacturing a capacitor element comprising a plurality of constant current sources provided with a plurality of cathodes corresponding to conductors and electrically connected to the individual cathodes.
- the individual cathodes arranged inside the bottom of the reaction vessel are connected to the nodes of the constant current diodes arranged outside the reaction vessel, and the cathodes of the constant current diodes are electrically connected to each other and collected at the terminals. 3.
- the individual cathodes provided on one side (front surface) of the insulating substrate and each constant current diode arranged on the other side (back surface) of the insulating substrate are electrically connected through through holes. 4.
- a method for producing a capacitor element comprising using the reaction container for producing a capacitor element according to any one of 1 to 5 above.
- Electrolytic solution in the reactor for producing a capacitor element according to any one of 1 to 5 above A plurality of conductors having a dielectric layer are immersed in the electrolytic solution, and the semiconductor layer is formed on the dielectric layer by an energization method using the conductor side as an anode and each cathode provided in the reaction vessel as a cathode. Forming a capacitor element.
- Examples of the conductor used in the present invention include metals, inorganic semiconductors, organic semiconductors, force bonbons, a mixture of at least one of these, and a laminate in which a conductor is laminated on the surface layer thereof.
- inorganic semiconductors include metal oxides such as lead dioxide, molybdenum dioxide, tungsten dioxide, niobium monoxide, tin dioxide, and zirconium monoxide.
- Organic semiconductors include polypyrrole, polythiophene, 'polyaniline and their high Examples thereof include substituted polymers having a molecular skeleton, conductive polymers such as copolymers, complexes of tetracyanoquinodimethane (TCNQ) and tetrathiotetracene, and low molecular complexes such as TCNQ salts.
- TCNQ tetracyanoquinodimethane
- TCNQ salts low molecular complexes
- the laminate in which the conductor is laminated on the surface layer include a laminate in which the conductor is laminated on paper, an insulating polymer, glass or the like.
- a part of the metal may be used after at least one treatment selected from carbonization, phosphation, boronation, nitridation, and sulfidation.
- the shape of the conductor is not particularly limited, and may be used as a foil shape, a plate shape, a rod shape, a shape in which the conductor itself is formed into a powder, or sintered after forming.
- the surface of the conductor may be treated with etching or the like to have fine pores.
- fine pores are provided in the interior after molding or sintering by appropriately selecting the pressure during molding. Can.
- the lead can be connected directly to the conductor.
- the lead wire (or a separate lead wire prepared at the time of molding) It is also possible to form a part of the lead foil together with the conductor, and use the lead-out lead wire (or lead foil) outside the molding as the lead-out lead for one electrode of the capacitor.
- a semiconductor layer which will be described later may not be formed on a part of the conductor and may be left as an anode part.
- an insulating resin may be adhered and cured in a headband shape.
- tantalum powder, niobium powder, alloy powder containing tantalum as a main component, alloy powder containing niobium as a main component, niobium monoxide powder and the like are formed and sintered inside.
- examples thereof include a sintered body having many fine pores and an aluminum foil whose surface is etched.
- the dielectric layer formed on the conductor surface of the present invention at least one selected from metal oxides such as Ta 2 0 5 , A 1 2 0 3 , T i 0 2 and N b 2 0 5 is mainly used.
- the dielectric layer that is a component and a conventionally known dielectric layer in the fields of ceramic capacitors and film capacitors.
- the capacitor obtained by forming the dielectric layer by forming the conductor having the metal element of the metal oxide has a polarity. It becomes an electrolytic capacitor with.
- a conventionally known dielectric layer for ceramic capacitors and film capacitors it has been described in Japanese Patent Application Laid-Open No.
- a dielectric layer can be mentioned.
- a plurality of conventionally known dielectric layers may be used by laminating a dielectric layer mainly composed of at least one selected from metal oxides or a ceramic capacitor film capacitor.
- a dielectric layer composed mainly of at least one selected from metal oxides may be a dielectric layer in which a conventionally known dielectric is mixed with a ceramic capacitor or a film capacitor. A specific example for forming a dielectric layer by chemical conversion will be described.
- a plurality of long metal plates with a plurality of conductors connected at equal intervals are arranged in a metal frame with the directions aligned in parallel, and a part of the anode or lead wire (lead foil) is placed in a separately prepared chemical conversion tank.
- a dielectric layer is formed on the surface of the conductor by immersing the conductor in the conversion solution, applying a voltage between the metal frame side to the anode and the cathode plate in the conversion bath for a specified time, pulling up, washing and drying. .
- the other electrode of the capacitor of the present invention includes at least one compound selected from organic semiconductors and inorganic semiconductors.
- organic semiconductors include organic semiconductors composed of benzopyrroline tetramer and chloranil, organic semiconductors based on tetrathiotetracene, organic semiconductors based on tetracyanodimethane, and the following formula (1)
- organic semiconductors mainly composed of a conductive polymer in which a polymer containing a repeating unit represented by (2) is doped with a dopant.
- ⁇ 1 to! ⁇ 4 each independently represents a hydrogen atom, an alkyl group having 1 to 6 carbon atoms or an alkoxy group having 1 to 6 carbon atoms
- X represents an oxygen, thio or nitrogen atom
- R 5 represents X Present only when is a nitrogen atom and represents a hydrogen atom or an alkyl group having 1 to 6 carbon atoms
- R 1 and R 2 and R 3 and R 4 may be bonded to each other to form a ring.
- the polymer containing the repeating unit represented by the formula (1) is preferably a structural unit represented by the following formula (3) as a repeating unit.
- each of 13 ⁇ 4 6 and 17 is independently a hydrogen atom, a linear or branched saturated or unsaturated alkyl group having 1 to 6 carbon atoms, or the alkyl group at any position with respect to each other. It represents a substituent that is bonded to form a cyclic structure of at least one 5- to 7-membered saturated hydrocarbon containing two oxygen atoms.
- the cyclic structure includes those having a vinylene bond which may be substituted and those having a phenylene structure which may be substituted.
- a conductive polymer containing such a chemical structure is charged and doped with a dopant.
- a dopant is not specifically limited, A well-known dopant can be used.
- Preferable examples of the dopant include a compound having a sulfonic acid group.
- Examples of such compounds include benzene sulfonic acid, toluene sulfonic acid, naphthalene sulphonic acid, anthracene sulphonic acid, benzoquinone sulphonic acid, naphthoquinone sulphonic acid and sulphonic acid having an aryl group such as anthraquinone sulphonic acid, butyl sulphonic acid , Sulfonic acid having an alkyl group such as hexyl sulfonic acid and cyclohexyl sulfonic acid, various polymers such as polyvinyl sulfonic acid (degree of polymerization: 2 to 200) sulfonic acid, salt of these sulfonic acids (ammonium salt) Typical examples include alkali metal salts, alkaline earth metal salts, and the like. These compounds may have various substituents, and a plurality of sulfonic acid groups may exist. Also, multiple dopants may be
- Examples of the polymer containing repeating units represented by the formulas (1) to (3) include, for example, Examples thereof include polyaniline, polyoxyphenylene, polyphenylene sulfide, polythiophene, polyfuran, polypyrrole, polymethylbilol, and substituted derivatives and copolymers thereof. Of these, polypyrrole, polythiophene, and substituted derivatives thereof (for example, poly (3,4-ethylenedioxythiophene)) are preferable.
- the inorganic semiconductor include at least one compound selected from molybdenum dioxide, tungsten dioxide, lead dioxide, manganese dioxide, and the like.
- the organic semiconductor and an inorganic semiconductor used has an electric conductivity of 1 0 one 2 ⁇ 1 0 3 S / cm , have preferred ESR value of the capacitor fabricated is reduced.
- the semiconductor layer described above is formed by a pure chemical reaction (solution reaction, gas phase reaction, solid-liquid reaction, and combinations thereof), formed by a current application method, or a combination of these methods.
- the energization method is adopted at least once in the semiconductor layer forming step.
- at least one energization is performed by a constant current power source (constant current source) at the time of energization, thereby achieving the object of the present invention.
- Constant current diodes are not limited to those that are commercially available as constant current diodes, but may be composed of field-effect transistors. Other examples include constant current sources that use transistors, ICs that use ICs, and devices that use three-terminal regulators.
- the constant current source is not limited to this example.
- a reaction vessel for simultaneously producing a plurality of capacitor elements according to the present invention is Cathode plates are provided at the bottom of each room inside the reaction chamber. The cathode plates are connected to the anode of each constant current diode, and the cathodes of each constant current diode are electrically connected to each other. It consists of the current collection.
- a metal frame in which a plurality of conductors on which a dielectric layer is formed as described above is arranged is arranged on the upper part of the reaction container for manufacturing a capacitor element of the present invention filled with the electrolyte for forming a semiconductor layer.
- the constant current diode rank (current standard)
- a constant current flows according to (a constant-current diode may be selected so as to be in a specific current range). This current forms a semiconductor layer on the dielectric layer of the conductor.
- a voltage in the specified range is applied in the forward direction (in the direction of the constant current diode) in the direction from the anode to the force sword, a predetermined constant current flows, but the current value is the rank of the constant current diode.
- the constant current diode can be selected and the constant current in an arbitrary range can be passed.
- each constant current diode outside the individual chamber of the reaction vessel because the reaction vessel can be miniaturized without crossing with the cathode plate arranged inside the bottom of the reaction vessel.
- the hole of the reaction vessel by the connection wiring between the cathode plate inside and outside the reaction vessel and the constant current diode can be closed (sealed) with resin or the like.
- Fig. 1 shows a schematic diagram of an example of a reaction vessel (1) for manufacturing a capacitor element.
- Fig. 2 shows a plan view (surface view) of a preferred arrangement example of the cathode plate and constant current diode of the reaction vessel of the present invention.
- Figure 3 shows the back view.
- a film-like metal material formed by printing technology on one side of the insulating substrate is used as a cathode plate (circular in the example shown), and printed wiring is printed on the back side through the through hole of the insulating substrate.
- An example is a structure in which a constant current diode (3) is disposed at a predetermined position and the through hole is closed with an insulating resin such as epoxy resin.
- the through-hole structure is preferable because printed wiring is provided inside the through-hole, and electrical connection between the front and back sides can be easily performed.
- the insulating substrate on which the plurality of cathode plates (2) and the constant current diodes (3) are arranged in this manner is used as the bottom of the reaction vessel, and a frame is formed with an insulating resin so as to surround the insulating substrate.
- the reaction vessel (1) that has been formed and processed can be used.
- a frame (6) of a predetermined height is provided at a predetermined position of the insulating substrate so as to be perpendicular to the substrate, and a plurality of chambers in which each cathode plate is placed in the reaction vessel are prepared. It is also possible to have a structure filled with the electrolyte solution.
- each conductor in which the above-described dielectric layer is formed in each chamber of such a reaction vessel it is preferable to design each conductor in which the above-described dielectric layer is formed in each chamber of such a reaction vessel in order to reliably supply a desired current to each conductor.
- a cathode plate that is electrically connected only to the cathode plate on the bottom surface of each room on a part or all of the frame of a predetermined height may be prepared in advance.
- the size of the reaction vessel of the present invention can be appropriately determined according to the volume and number of conductors produced at one time and the size of the cathode plate.
- An outer frame capable of circulating temperature-controlled water may be provided in the reaction vessel.
- the individual cathode plates provided on the bottom surface of the reaction vessel are electrically insulated from each other, and each cathode plate is designed so that the lower surface of one conductor (5) faces each other. For this reason, it is desirable to make the size of the cathode plate (2) larger than the lower surface of the conductor used. However, if the size is too large, the size of the reaction vessel also increases, and the amount of the electrolyte used for forming the semiconductor layer increases, which is disadvantageous in terms of cost. For this reason, the size of the cathode plate is determined to be the minimum size that can conduct a current for forming a sufficient semiconductor layer on the conductor through preliminary experiments. For example, when the lower surface of the conductor is a rectangular shape, the size of the cathode plate is about 1.01 to 3 times, preferably about 1.01 to 1.5 times the rectangular area.
- non-corrosive conductors can be used for the electrolyte for forming the semiconductor layer. wear.
- iron alloy, copper alloy, tantalum, platinum, etc. are used.
- Electrode non-corrosive conductors such as nickel, gold, silver, solder, etc. may be coated on the cathode plate surface. When such a plating layer is laminated on the surface, corrosive conductors such as copper and aluminum can also be used.
- a plurality of cathode plates can be provided in one room.
- the individual cathode plates are electrically connected to a current sink type constant current source.
- the constant current source is configured using a constant current diode, for example, each force sword of a plurality of constant current diodes is electrically connected, and the cathode plate is electrically connected to the anode of each constant current diode. The thing of the structure connected in series is mentioned.
- Each room is filled with an electrolyte (not shown) for forming a semiconductor layer at approximately the same height so as not to exceed the height of the room.
- Fig. 3 is a schematic view of the bottom of the reaction vessel as seen from the outside (back side).
- a plurality of constant current diodes (3) are arranged in parallel at equal intervals, and the cathode side of each constant current diode is electrically connected to the current collecting terminal (4) at the upper left in the figure.
- Figure 2 is a schematic view of the reaction vessel as seen from the top (surface).
- a plurality of cathode plates (2) are arranged at equal intervals. The individual cathode plates are insulated from each other and connected to the anodes of the respective constant current diodes in FIG. 3 through through holes (not shown) provided in the same number as the cathode plates at the bottom of the reaction vessel.
- reaction vessel In the upper part, a plurality of metal plates having conductors (5) having a dielectric layer formed on the surface connected at equal intervals are arranged at equal intervals and integrated with a metal frame. Each conductor is soaked one by one in a predetermined amount of electrolyte in each chamber provided in the reaction vessel.
- the electrolyte for forming the semiconductor layer is filled with approximately the same height so as not to exceed the height of the chamber, and then placed on the metal frame (7) at equal intervals and a dielectric layer on the surface.
- One conductor is formed in each chamber, and a semiconductor layer is formed by an energization method with the metal frame as the anode and the current collector terminal located outside the bottom of the reaction vessel as the cathode.
- a semiconductor in which a raw material that becomes a semiconductor when energized or a dopant as described above eg, known dopants such as aryl sulfonic acid or salt, alkyl sulfonic acid or salt, various polymers sulfonic acid or salt
- a dopant eg, known dopants such as aryl sulfonic acid or salt, alkyl sulfonic acid or salt, various polymers sulfonic acid or salt
- concentration of the semiconductor layer forming solution pH, temperature, energizing current value, energizing voltage value vary depending on the type, size, mass, desired semiconductor layer formation thickness, etc.
- the conditions are determined by experiment. It is also possible to energize multiple times with different energization conditions.
- a conventionally known re-formation operation is performed. Also good.
- the semiconductor layer may be formed by the method of the present invention after an electrical minute defect portion is formed in the dielectric layer formed on the surface of the conductor layer.
- an electrode layer may be provided on the semiconductor layer formed by the above-described method or the like in order to improve electrical contact with the external lead of the capacitor (for example, a lead frame).
- the electrode layer can be formed by, for example, solidification of a conductive paste, plating, metal vapor deposition, adhesion of a heat-resistant conductive resin film, or the like.
- a conductive paste silver paste, copper paste, ano-reminimum paste, carbon paste, nickel paste, and the like are preferable. These can be used alone or in combination of two or more. When two or more kinds are used, they may be mixed or laminated as separate layers. After applying conductive paste, leave in air or heat to solidify.
- the thickness of the conductive paste after solidification is usually about 0.1 to about 200 ⁇ per layer.
- the conductive paste is mainly composed of resin and conductive powder such as metal, and may contain a solvent for dissolving the resin, a curing agent for the resin, or the like depending on the case.
- the solvent is scattered when the paste is solidified.
- the resin in the conductive paste various known resins such as alkyd resin, acrylic resin, epoxy resin, phenol resin, imide resin, fluorine resin, ester resin, imide resin, amide resin, styrene resin, urethane resin, etc. Is used.
- the conductive powder silver, copper, aluminum, gold, carbon, nickel and alloy powders mainly composed of these metals, coat powders with these metals in the surface layer, or at least one of these mixed powders are used. .
- the conductive powder is usually contained in 40 to 97% by mass. If the content is less than 40% by mass, the conductivity of the produced conductive paste is small, and if it exceeds 97% by mass, the adhesion of the conductive paste is reduced. You may mix and use the conductive polymer and metal oxide powder which form the semiconductor layer mentioned above in the electrically conductive paste.
- plating examples include nickel plating, copper plating, silver plating, gold plating, and aluminum double plating.
- examples of the deposited metal include ano-reminium, echkenole, copper, gold, and silver.
- a carbon paste and a silver paste are sequentially laminated on a conductor on which a semiconductor layer is formed, and sealed with a material such as an epoxy resin. Composed.
- the capacitor may have a lead made of a metal wire or metal foil connected in advance to the conductor or connected later.
- the capacitor of the present invention having the above-described configuration can be made into a capacitor product for various uses by using, for example, a resin mold, a resin case, a metallic exterior case, a resin dating, or an exterior made of a laminate film. .
- the chip-like capacitor force with resin-molded exterior is particularly preferable because it can reduce the size and cost.
- the capacitor of the present invention is a lead frame having a pair of opposingly arranged tip portions, in which a part of the conductor layer of the capacitor element is separately prepared.
- a part of the anode lead (which may be used by cutting the tip of the anode lead to match the dimensions) is placed on the other tip of the lead frame,
- the former is solidification of the conductive base, and the latter is electrically and mechanically joined by welding, and then resin-sealed, leaving a part of the leading end of the lead frame.
- the lead frame is on the bottom surface of the resin seal and is sealed with only the bottom surface or bottom and side surfaces of the lead frame, only the cutting process may be used.) It is manufactured.
- the lead frame is cut as described above and finally becomes the external terminal of the capacitor, but the shape is foil or flat plate, and the material is iron, copper, aluminum or these metals as the main components. An alloy is used. A part or all of the lead frame may be provided with a solder, tin, titanium, gold, nickel or the like. There may be an undercoating of nickel or copper between the lead frame and the plating.
- the lead frame has a pair of opposed tip portions and a gap between the tip portions insulates the anode portion and the cathode portion of each capacitor element.
- resins used for sealing solid electrolytic capacitors such as epoxy resin, phenol resin, and alkyd resin can be used. When used, it is preferable because the generation of sealing stress on the capacitor element during sealing can be mitigated. Further, a transfer machine is preferably used as a manufacturing machine for sealing the resin.
- the capacitor thus produced may be subjected to an aging treatment in order to repair thermal and Z or physical deterioration of the dielectric layer at the time of electrode layer formation or exterior.
- the aging method is performed by applying a predetermined voltage (usually within twice the rated voltage) to the capacitor.
- a predetermined voltage usually within twice the rated voltage
- the optimum value for aging time and temperature varies depending on the capacitor type, capacity, and rated voltage, so it is determined in advance by experiment. Normally, the time is several minutes to several days, and the temperature takes into account the thermal degradation of the voltage application jig Performed at 300 ° C or lower.
- the aging atmosphere may be performed under any of reduced pressure, normal pressure, and increased pressure. Furthermore, the aging atmosphere may be air, a gas such as argon, nitrogen, or helium, but is preferably water vapor.
- Aging may be carried out in an atmosphere containing water vapor, and then in a gas such as air, argon, nitrogen, helium, etc., stabilization of the dielectric layer may proceed.
- a gas such as air, argon, nitrogen, helium, etc.
- stabilization of the dielectric layer may proceed.
- After supplying water vapor return to normal pressure and room temperature, or after supplying water vapor, leave it at a high temperature of 15 to 25 ° C. for several minutes to several hours to remove excess water and perform the aging. It is possible.
- a method for supplying water vapor is a method for supplying water vapor from a water reservoir placed in an aging furnace.
- direct current As the voltage application method, direct current, alternating current with arbitrary waveform, alternating current superimposed on direct current Or any current such as a pulse current can be designed. It is also possible to stop the voltage application in the middle of aging and apply the voltage again.
- the capacitor manufactured according to the present invention has a stable capacitance because the semiconductor layer can be formed under the same stable conditions. For this reason, the capacitance distribution (variation) of the capacitor group (multiple capacitors fabricated at the same time) is narrower than that of the conventional product. For this reason, when trying to acquire a capacitor in a specific capacity range, sorting by capacity is unnecessary or even if sorting is required, the yield is improved.
- the capacitor group manufactured by the present invention can be used for digital devices such as personal computers, servers, cameras, game machines, DV and AV devices, mobile phones, and electronic devices such as various power sources.
- FIG. 1 is a schematic diagram showing a configuration of one embodiment of a reaction container for producing a capacitor element of the present invention.
- FIG. 2 is a schematic view showing the configuration of the inner surface (surface) of the bottom of one form of the reaction container for producing a capacitor element of the present invention.
- FIG. 3 is a schematic diagram showing the configuration of the back surface of the bottom of one form of the reaction container for producing a capacitor element of the present invention.
- a total of 640 cathode plates with 32 marks in the length direction and 20 spaces in the width direction were prepared. Furthermore, the other side (back side) was printed and wired so that the anode side of the constant current diode as shown in Fig. 2 and each cathode plate on the surface were connected in series via a through hole.
- the cathode part of each constant current diode was soldered to the land of the printed wiring, and finally connected by wiring reaching the current collector terminal.
- the constant current diode F-101 manufactured by Ishizuka Electronics Co., Ltd.
- a tantalum sintered body with a CV of 100,000 ⁇ F ⁇ V / g (size 4.5X3.0X1.0mm, mass 84mg, lead wire 0.40 ⁇ on the surface 7mm) was used as the conductor.
- a tetrafluoroethylene washer was attached to the lead wire to prevent the solution from splashing when the semiconductor layer was formed in the subsequent process.
- the top 2 mm of the conductor lead wire thus made is aligned with a stainless steel plate 360 mm long, 20 mm thick, 2 mm thick, and aligned at 10 mm intervals from a position 25 mm from the edge. Two pieces were connected by welding.
- the obtained capacitor has a rated 2.5 V capacity 6 S 0 ⁇ F, the number of 7 2 0 to 6 4 5 / i F 5 9 4, 7 2 0 to 7 5 0 / F 1 7 pieces, 6 4 5 to 6 1 0 ⁇ F pieces 2 9 pieces had a capacity distribution.
- Comparative Example 1 In Example 1, the reaction vessel for manufacturing the capacitor element of the present invention was not used, but a conventional reaction vessel, that is, the same size, but each room also had an individual cathode plate and a current sink type current source.
- a semiconductor layer was formed by energizing the cathode plate as a cathode in a reaction vessel provided with a cathode plate with gold plating on copper having the same size as the bottom area inside the lower surface of the vessel.
- a chip capacitor was fabricated in the same manner as in Example 1 except for the above. The appearance capacity distribution of the obtained capacitors exceeded 20% of the average capacity.
- the obtained capacitor has a rated 2.5 V capacity of 6 80 ⁇ F, the number of 7 2 0-6 4 5 / i F 3 5 9 pieces, 7 2 0-7 50 ⁇ F Number 1 5 pieces, 7 5 0 to 7 80 ⁇ F number 2 pieces, 6 4 5 to 6 1 0 x F pieces 1 5 0 pieces, 6 1 0 to 5 7 5 ⁇ F pieces 9 3 pieces, The number of 5 7 5 to 5 4 0 F 1 7 and the number of 5 4 0 to 5 1 0 ⁇ F 4 had a capacity distribution. From Example 1 and Comparative Example 1, it can be seen that the capacitance distribution of the capacitor group obtained in Example 1 is clearly narrower than that of the capacitor group obtained in Comparative Example 1.
- Example 2 Example 2:
- Example 1 the cathode plate of each small chamber of the reaction vessel was not produced by printing technology, and the height from the bottom part of each small part and the bottom part of the side to 14 mm in height was 93% by mass of silver powder, epoxy tree A solid plate with a thickness of about 0.3mm was drawn with 7% by weight of silver paste to make a cathode plate.
- a constant current diode from Ishizuka Electronics Co., Ltd. F _ 1 0 1 L to 6 0 to 1 0 0 / Except that A was selected and used, a reaction vessel as in Example 1 was prepared.
- Niobium primary powder (average particle size 0.32 ⁇ ⁇ ) ground using the hydrogen embrittlement of niobium ingot is granulated, and niobium powder with an average particle size of 1 ⁇ ⁇ ⁇ ⁇ (the surface is It is naturally oxidized and oxygen is present at 95000ppm. )
- niobium powder with an average particle size of 1 ⁇ ⁇ ⁇ ⁇ (the surface is It is naturally oxidized and oxygen is present at 95000ppm. )
- a partially nitrided niobium powder (CV298000 / i F ⁇ V / g) with a nitrogen content of 9600 ppm was obtained. did.
- niobium powder After forming this niobium powder with a 0.37mm diameter niobium wire and sintering at 1280 ° C, the size becomes 4.0X3.5 X 1.7mm (mass 0.08 g.
- the niobium wire becomes the lead wire inside the sintered body. There were 3.7 mm and 8 mm outside.) A number of sintered bodies (conductors) were produced. Next, the same number of conductors were connected to the same stainless steel plate as in Example 1, and then the same number of conductors were disposed on the metal frame. A dielectric layer composed mainly of Nb 2 0 5 was formed on the conductor surface and part of the lead wire by forming only the voltage at 2 OV.
- Example 2 After placing the reactor for producing the capacitor element in a low-temperature chamber controlled at 12 ° C, the anthraquinone-2-sulfonic acid of Example 1 was replaced with pyrrole, and the energization voltage and re-forming voltage were 23 V each.
- a semiconductor layer and an electrode layer were formed and sealed in the same manner as in Example 1 except that the voltage was 14 V, the energization time was 90 minutes, and the number of reactions was 11, and the size was 7.3X4.3X2.
- An 8mm chip-shaped solid electrolytic capacitor was fabricated. The appearance capacity distribution of the obtained capacitor was within ⁇ 15% of its average capacity.
- the obtained capacitors have a rated 4 V capacity of 1000 XF, the number of 950 to 1050 / F 5 79, the number of 1050 to 1100 F, the number of 1 to 3, the number of 950 to 9 ⁇ ⁇ ⁇ F 44, 900-850 ⁇ F, 4 capacity distribution.
- Comparative Example 2 Comparative Example 2:
- Example 2 a chip-shaped solid electrolysis was conducted in the same manner as in Example 2 except that the capacitor was produced using the conventional reaction vessel used in Comparative Example 1 without using the reaction vessel for producing the capacitor element of the present invention. A capacitor was produced. The resulting capacitance distribution of the obtained capacitor exceeded ⁇ 20% of its average capacitance.
- the obtained capacitor has a rating of 4 V capacity 1000 / F and is 950 to 1050 ⁇ F Number 3 6 5 Number of 1050 to 1100 F 7 Number, 9 5 0 to 90 0 ⁇ F Number 1 7 2 Number, 9 0 0 to 8 5 0 Number of F 6 8 Number, 8 5 0 to 8 0 0 / F number 1 9, 8 0 0 to 7 5 0 // F number 6, 7 5 0 to 7 0 Number of strings 3 had capacity distribution. From Example 2 and Comparative Example 2, it can be seen that the capacitance distribution of the capacitor group obtained in Example 2 is clearly narrower than that of the capacitor group obtained in Comparative Example 2. Industrial applicability
- the present invention provides a capacitor element manufacturing reaction vessel and a capacitor element manufacturing method in which a semiconductor layer is formed by energization through a constant current source. According to the present invention, the appearance capacity distribution is It is possible to obtain a capacitor group having a narrow capacitance distribution in which the appearing capacitance is within the range of the average capacitance ⁇ 20%.
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Abstract
Description
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JP2006535188A JP4717824B2 (ja) | 2004-09-09 | 2005-09-08 | コンデンサ素子製造用反応容器、コンデンサ素子の製造方法及びコンデンサ素子並びにコンデンサ |
KR1020077006353A KR101142310B1 (ko) | 2004-09-09 | 2005-09-08 | 콘덴서 소자의 제조방법 및 콘덴서 |
CN2005800303003A CN101015030B (zh) | 2004-09-09 | 2005-09-08 | 电容器元件制造用反应容器、电容器元件的制造方法、电容器元件和电容器 |
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JP2010093019A (ja) * | 2008-10-07 | 2010-04-22 | Nichicon Corp | 固体電解コンデンサおよびその製造方法 |
WO2011077950A1 (ja) * | 2009-12-21 | 2011-06-30 | 昭和電工株式会社 | コンデンサ素子製造用反応容器及びコンデンサ素子の製造方法 |
EP2410541A4 (en) * | 2009-03-17 | 2016-05-11 | Showa Denko Kk | SOLENOID ELECTROLYTE CONDENSER ELEMENT, MANUFACTURING METHOD AND DEVICE FOR ITS MANUFACTURE |
EP3361514A1 (en) | 2017-02-13 | 2018-08-15 | Norbert Kreft | Pane for a pv-module and pv-module |
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CN110379627A (zh) * | 2019-05-31 | 2019-10-25 | 益阳艾华富贤电子有限公司 | 一种固液混合电容器的制备工艺及固液混合电容器 |
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- 2005-09-08 KR KR1020077006353A patent/KR101142310B1/ko active IP Right Grant
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Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
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JP2010093019A (ja) * | 2008-10-07 | 2010-04-22 | Nichicon Corp | 固体電解コンデンサおよびその製造方法 |
EP2410541A4 (en) * | 2009-03-17 | 2016-05-11 | Showa Denko Kk | SOLENOID ELECTROLYTE CONDENSER ELEMENT, MANUFACTURING METHOD AND DEVICE FOR ITS MANUFACTURE |
WO2011077950A1 (ja) * | 2009-12-21 | 2011-06-30 | 昭和電工株式会社 | コンデンサ素子製造用反応容器及びコンデンサ素子の製造方法 |
KR101387787B1 (ko) | 2009-12-21 | 2014-04-21 | 쇼와 덴코 가부시키가이샤 | 콘덴서 소자 제조용 반응 용기 및 콘덴서 소자의 제조 방법 |
US8792225B2 (en) | 2009-12-21 | 2014-07-29 | Showa Denko K.K. | Partitioned reaction container for manufacturing capacitor element including openable and closable passage |
EP3361514A1 (en) | 2017-02-13 | 2018-08-15 | Norbert Kreft | Pane for a pv-module and pv-module |
WO2018146325A1 (en) | 2017-02-13 | 2018-08-16 | Norbert Kreft | Pane for a pv-module and pv-module |
Also Published As
Publication number | Publication date |
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CN101015030A (zh) | 2007-08-08 |
JPWO2006028286A1 (ja) | 2008-05-08 |
CN101015030B (zh) | 2013-01-02 |
KR101142310B1 (ko) | 2012-05-17 |
TW200615991A (en) | 2006-05-16 |
JP4717824B2 (ja) | 2011-07-06 |
KR20070053769A (ko) | 2007-05-25 |
TWI417917B (zh) | 2013-12-01 |
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